From 9e84401638143184cb16a2d5c5326476c13467e8 Mon Sep 17 00:00:00 2001 From: Mark Hounschell Date: Tue, 25 Mar 2014 16:38:14 -0400 Subject: [PATCH] staging: dgap: Only read config file dgap.conf once The config file is currently read for each board found. It only needs to be read one time. The buffer it is read into can now be freed immediately after it is parsed instead of at driver unload time. Signed-off-by: Mark Hounschell Signed-off-by: Greg Kroah-Hartman --- drivers/staging/dgap/dgap.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/staging/dgap/dgap.c b/drivers/staging/dgap/dgap.c index ea920e41dc0a..07fcb8df6a60 100644 --- a/drivers/staging/dgap/dgap.c +++ b/drivers/staging/dgap/dgap.c @@ -620,8 +620,6 @@ static void dgap_cleanup_module(void) class_destroy(dgap_class); unregister_chrdev(DIGI_DGAP_MAJOR, "dgap"); - kfree(dgap_config_buf); - for (i = 0; i < dgap_NumBoards; ++i) { dgap_remove_ports_sysfiles(dgap_Board[i]); dgap_tty_uninit(dgap_Board[i]); @@ -828,7 +826,7 @@ static int dgap_firmware_load(struct pci_dev *pdev, int card_type) dgap_get_vpd(brd); dgap_do_reset_board(brd); - if (fw_info[card_type].conf_name) { + if ((fw_info[card_type].conf_name) && !dgap_config_buf) { ret = request_firmware(&fw, fw_info[card_type].conf_name, &pdev->dev); if (ret) { @@ -836,20 +834,22 @@ static int dgap_firmware_load(struct pci_dev *pdev, int card_type) fw_info[card_type].conf_name); return ret; } + + dgap_config_buf = kmalloc(fw->size + 1, GFP_KERNEL); if (!dgap_config_buf) { - dgap_config_buf = kmalloc(fw->size + 1, GFP_ATOMIC); - if (!dgap_config_buf) { - release_firmware(fw); - return -ENOMEM; - } + release_firmware(fw); + return -ENOMEM; } memcpy(dgap_config_buf, fw->data, fw->size); release_firmware(fw); dgap_config_buf[fw->size + 1] = '\0'; - if (dgap_parsefile(&dgap_config_buf, TRUE) != 0) + if (dgap_parsefile(&dgap_config_buf, TRUE) != 0) { + kfree(dgap_config_buf); return -EINVAL; + } + kfree(dgap_config_buf); } ret = dgap_after_config_loaded(brd->boardnum); -- 2.30.2